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<?php /** * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * http://www.gnu.org/copyleft/gpl.html * * @file */ namespace MediaWiki\Specials; use MediaWiki\Html\Html; use MediaWiki\HTMLForm\HTMLForm; use MediaWiki\MainConfigNames; use MediaWiki\MediaWikiServices; use MediaWiki\Output\OutputPage; use MediaWiki\Parser\Parser; use MediaWiki\Parser\ParserFactory; use MediaWiki\Parser\ParserOptions; use MediaWiki\Parser\ParserOutput; use MediaWiki\SpecialPage\SpecialPage; use MediaWiki\Status\Status; use MediaWiki\Tidy\TidyDriverBase; use MediaWiki\Title\Title; use MediaWiki\User\Options\UserOptionsLookup; use MediaWiki\Xml\Xml; /** * A special page to enter wikitext and expands its templates, parser functions, * and variables, allowing easier debugging of these. * * @ingroup SpecialPage * @ingroup Parser */ class SpecialExpandTemplates extends SpecialPage { /** @var int Maximum size in bytes to include. 50 MB allows fixing those huge pages */ private const MAX_INCLUDE_SIZE = 50_000_000; private ParserFactory $parserFactory; private UserOptionsLookup $userOptionsLookup; private TidyDriverBase $tidy; /** * @param ParserFactory $parserFactory * @param UserOptionsLookup $userOptionsLookup * @param TidyDriverBase $tidy */ public function __construct( ParserFactory $parserFactory, UserOptionsLookup $userOptionsLookup, TidyDriverBase $tidy ) { parent::__construct( 'ExpandTemplates' ); $this->parserFactory = $parserFactory; $this->userOptionsLookup = $userOptionsLookup; $this->tidy = $tidy; } /** * Show the special page * @param string|null $subpage */ public function execute( $subpage ) { $this->setHeaders(); $this->addHelpLink( 'Help:ExpandTemplates' ); $request = $this->getRequest(); $input = $request->getText( 'wpInput' ); if ( strlen( $input ) ) { $removeComments = $request->getBool( 'wpRemoveComments', false ); $removeNowiki = $request->getBool( 'wpRemoveNowiki', false ); $generateXML = $request->getBool( 'wpGenerateXml' ); $generateRawHtml = $request->getBool( 'wpGenerateRawHtml' ); $options = ParserOptions::newFromContext( $this->getContext() ); $options->setRemoveComments( $removeComments ); $options->setMaxIncludeSize( self::MAX_INCLUDE_SIZE ); $titleStr = $request->getText( 'wpContextTitle' ); $title = Title::newFromText( $titleStr ); if ( !$title ) { $title = $this->getPageTitle(); $options->setTargetLanguage( $this->getContentLanguage() ); } $parser = $this->parserFactory->getInstance(); if ( $generateXML ) { $parser->startExternalParse( $title, $options, Parser::OT_PREPROCESS ); $dom = $parser->preprocessToDom( $input ); if ( method_exists( $dom, 'saveXML' ) ) { // @phan-suppress-next-line PhanUndeclaredMethod $xml = $dom->saveXML(); } else { // @phan-suppress-next-line PhanUndeclaredMethod $xml = $dom->__toString(); } } $output = $parser->preprocess( $input, $title, $options ); $this->makeForm(); $out = $this->getOutput(); if ( $generateXML && strlen( $output ) > 0 ) { // @phan-suppress-next-line PhanPossiblyUndeclaredVariable xml is set when used $out->addHTML( $this->makeOutput( $xml, 'expand_templates_xml_output' ) ); } $tmp = $this->makeOutput( $output ); if ( $removeNowiki ) { $tmp = preg_replace( [ '_<nowiki>_', '_</nowiki>_', '_<nowiki */>_' ], '', $tmp ); } $tmp = $this->tidy->tidy( $tmp ); $out->addHTML( $tmp ); $pout = $parser->parse( $output, $title, $options ); // TODO T371008 consider if using the Content framework makes sense instead of creating the pipeline $rawhtml = MediaWikiServices::getInstance()->getDefaultOutputPipeline() ->run( $pout, $options, [ 'enableSectionEditLinks' => false ] )->getContentHolderText(); if ( $generateRawHtml && strlen( $rawhtml ) > 0 ) { $out->addHTML( $this->makeOutput( $rawhtml, 'expand_templates_html_output' ) ); } $this->showHtmlPreview( $title, $pout, $out ); } else { $this->makeForm(); } } /** * Callback for the HTMLForm used in self::makeForm. * Checks, if the input was given, and if not, returns a fatal Status * object with an error message. * * @param array $values The values submitted to the HTMLForm * @return Status */ public function onSubmitInput( array $values ) { $status = Status::newGood(); if ( !strlen( $values['Input'] ) ) { $status = Status::newFatal( 'expand_templates_input_missing' ); } return $status; } /** * Generate a form allowing users to enter information */ private function makeForm() { $fields = [ 'Input' => [ 'type' => 'textarea', 'label' => $this->msg( 'expand_templates_input' )->text(), 'rows' => 10, 'id' => 'input', 'useeditfont' => true, 'required' => true, 'autofocus' => true, ], 'ContextTitle' => [ 'type' => 'text', 'label' => $this->msg( 'expand_templates_title' )->plain(), 'id' => 'contexttitle', 'size' => 60, ], 'RemoveComments' => [ 'type' => 'check', 'label' => $this->msg( 'expand_templates_remove_comments' )->text(), 'id' => 'removecomments', 'default' => true, ], 'RemoveNowiki' => [ 'type' => 'check', 'label' => $this->msg( 'expand_templates_remove_nowiki' )->text(), 'id' => 'removenowiki', ], 'GenerateXml' => [ 'type' => 'check', 'label' => $this->msg( 'expand_templates_generate_xml' )->text(), 'id' => 'generate_xml', ], 'GenerateRawHtml' => [ 'type' => 'check', 'label' => $this->msg( 'expand_templates_generate_rawhtml' )->text(), 'id' => 'generate_rawhtml', ], ]; $form = HTMLForm::factory( 'ooui', $fields, $this->getContext() ); $form ->setSubmitTextMsg( 'expand_templates_ok' ) ->setWrapperLegendMsg( 'expandtemplates' ) ->setHeaderHtml( $this->msg( 'expand_templates_intro' )->parse() ) ->setSubmitCallback( [ $this, 'onSubmitInput' ] ) ->showAlways(); } /** * Generate a nice little box with a heading for output * * @param string $output Wiki text output * @param string $heading * @return string */ private function makeOutput( $output, $heading = 'expand_templates_output' ) { $out = "<h2>" . $this->msg( $heading )->escaped() . "</h2>\n"; $out .= Xml::textarea( 'output', $output, 10, 10, [ 'id' => 'output', 'readonly' => 'readonly', 'class' => 'mw-editfont-' . $this->userOptionsLookup->getOption( $this->getUser(), 'editfont' ) ] ); return $out; } /** * Wraps the provided html code in a div and outputs it to the page * * @param Title $title * @param ParserOutput $pout * @param OutputPage $out */ private function showHtmlPreview( Title $title, ParserOutput $pout, OutputPage $out ) { $out->addHTML( "<h2>" . $this->msg( 'expand_templates_preview' )->escaped() . "</h2>\n" ); if ( $this->getConfig()->get( MainConfigNames::RawHtml ) ) { $request = $this->getRequest(); $user = $this->getUser(); // To prevent cross-site scripting attacks, don't show the preview if raw HTML is // allowed and a valid edit token is not provided (T73111). However, MediaWiki // does not currently provide logged-out users with CSRF protection; in that case, // do not show the preview unless anonymous editing is allowed. if ( $user->isAnon() && !$this->getAuthority()->isAllowed( 'edit' ) ) { $error = [ 'expand_templates_preview_fail_html_anon' ]; } elseif ( !$user->matchEditToken( $request->getVal( 'wpEditToken' ), '', $request ) ) { $error = [ 'expand_templates_preview_fail_html' ]; } else { $error = false; } if ( $error ) { $out->addHTML( Html::errorBox( $out->msg( $error )->parse(), '', 'previewnote' ) ); return; } } $out->addParserOutputContent( $pout, [ 'enableSectionEditLinks' => false ] ); $out->addCategoryLinks( $pout->getCategoryMap() ); } protected function getGroupName() { return 'wiki'; } } /** @deprecated class alias since 1.41 */ class_alias( SpecialExpandTemplates::class, 'SpecialExpandTemplates' );
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